Universal tandem joint



Oct. 2,- 1928. 1,686,196

M. w. wYsoNG UNIVERSAL TANDEM JOINT originalFiled Feb. 18, i926 2 sheets-sheet 2 ,Me-Xref@ W- WYSON PATENT oiriicE-. q

on NoR'rHl PLAINFIRLD, VNEW JERSEY, AssIGNoR or ONE-HALF To HERBERT ycfroirnmor NewsRx, NEW JRRsRY.

UNIVERSAL l'rANzDnitc JOINT.

Application led February-.18, 1926, `Serial No. 89,152. Renewed August 1, 1928.

This invention relates to an improved uniouter `ends ofthe shells areicaps 17 off-set Vversal tandem joint and seeks,among other objects, to providea joint especially'adapted for use in conjunction with motor drives for machinery, ldynamo and motor connections, or the like, and, 1n fact, almost any driving and drivenl elements requiring a short out of line connection.

The invention seeks, asa Afurther object, to provide a joint embodying av double ended joint member composed of companion unrv vcrsal joint units each; substantially of the character shown in' my co-'pending application fora universalljoint," filed February 18, 1926,

i VSerial No.\89,149.

y i Andy the invention seeks, as a still further object, to provide an improved mounting for` rigidly but rotatably. supporting the double endedjoint member. l 'j n Other objectsof 'the invention not specifically mentioned inthe foregoingavill appear' lduring the course-of the following description." Y Y Y In the accompanying dra-Wings: Figurel is a longitudinal vertical sectional view taken medially through the improved tandem joint'. v y i Figure 2 is a. transversesectional vieiy on the line 2-2 of Figure 1, looking in the direction indicated by the arrows. Figure 3 is a detail sectional View on the Aline 3-3 ofFgure'2, looking in the direction the balancing pins.

y Figure 4 is a detail sectional View onthe line 4-44 of Figure 1, looking in the direction indicated by thearrows. f 1

In carrying the invention intoeffect, I employ a double ended joint member-embodying gcompanion axially alined joint vunits which `are substantially identical'and include similar shells 10 rounded aty corresponding ends thereof. Formed on said shells are mating annular flanges 11 bolted or otherwise rigidly secured together'in abutting? relation. One of said shells is formed at its inner end With an annular socket and projecting from Vthe other indicated by the arrows, and showing one of of ysaid shellsis-a pilotffla-nge'12 snugly fitting in said socket for centering the shells with respect to each other.

are bearing cups 13 having spherical faces 14, land slidably fitting in the outer ends of the shells are companion annular bearing "cups 15 havingspheri'cal faces-16r i Screwed over the tosnugly surround the cups 15,` and formed on. saidv caps are iianges 18.y fitting in suitable groovesin the outerfend faces of the cups. The caps and the cups are preferably'united by solder connections, as indicated at 19j, and formed on the outer periplieries `of the caps are circumferentially spaced ribs 20. l'

Extending into the shells 10 are'shafts 21, either of Which may be considered as a drive shaft and the other as adriven shaft. shafts are formed with. yspherically i shaped ilianges or bearing members 22 VW'hi'cli fit the spherical faces 16 of the cups 15, and formed on saidY shafts at their inner ends are yokes 23. Rising from the inner end bars of-s'aid yokes are knob-like bearing members 24 having spherical end faces to coact Withthe spherical. faces 14 ofthe bearing cups 13. Thus, the bearing members 22 and 24will'coact with the cups-13 and 15 forv centering the shafts'with respect to the shells 10,A and countei'sunk in the cupsfl to frictionally bear against the mem;

bers 22 are appropriate gaskets 25 for eXcludingidust as Well as retaining lubricant Within p the shells. f

Snugly fitting in the 21 are spool-shaped cores 26 which arevpron vided with V-shaped grooves27,f and extending transversely through the sidebars ofthe yokes and through said cores are center pins 28V locked against e'ndyvise displacement by suitable keys, thepgrooves 27 of the cores being yokes23 ofthe' shafts These accurately formedl to extend in concentricV relation tothe axes of said pins. Slidably fitting. iii the groove of eachl of the cores is a otr pair of segmental shoes 29. As shown in Fig# ure 4, these slices are substantially V-shaped in cross section toseat `flat aga-inst'the side' ivalls of the grooves, and formed in said shoes are conical sockets 30 to which leadoil pas? sages 31 so that lubricant may readily Vcirculate throughsaid sockets. Formed o ii each of the shells 1() atoppositesides thereof-'is a pair of bosses 32, and screwed through each pair `of bosses'is a pair of axially alined pivot pins ioo i 33 having conical inner terminals 34 fitting in the sockets 30of one of the pair-sof slices respectively, the terminals of said pinsbeing 1 provided with oil grooves 35. 7 Screwed on the Fixed Within the inner ends of the shells 10v iio `the caps iii adjusted position.

sockets V39 to vselectively receive the ribs 20 of said caps so that the washers not only function to lock the nuts but also function to lock Lying'iii the angles between reinforcing Webs 40, and formed through certain of said webs, as Seen in Figure 3, are oil passages 41 which enter the shells so that lubricant maybe introduced into the shells throughsaid passages. Screwed `into the outer endsofthe passages'are balancing pins 42 whichmay be adjusted radially for balancing the shells, and screwed on said pins are lock nuts 43-s`ecured in adjusted position by suitableV locking washers. Preferably,- the' shells are initially filledabout two-thirds full'. with hard grease, and fitting in the grooves 27 of the cores 26 are fibrous packings 44'w'hich are saturated with .light lubricating oil. The bearing surfaces of the-joint units Will thusbeeffectually lubricated.

As willV now Vbe perceived, the shoes 26 of each unit may turn on the pins 33 of said unit so that the shaft 21 of the unit may rock in one plane about the axes of'said pins. Furthermore, the shoes ofV each unit may slide in the channel 27 of the core 26 of the unit so that the shaft 21 of said unit may Vrock about the axis of the pin 28 of the unit in a plane at a right angletothe former plane of movement of the shaft. Thus, the shafts 21 are each mounted for vindependent angular movement in different' vlanes lyingat a rightv y adjusting the pins Y angle to each other. 33, any play in the direction of the axes of said pins may be taken up, while by adjusting the caps 17, any endwise play of the shafts may likewise be taken up so that any undue looseness which` may develop between the bearing surfaces may be easily eliminated.`

Mounting the double `ended joint member is a pillow block including a base 45 on which is formed a pedestal 46, andmating with the pedestal is a. cap 47. detachably secured to the pedestal by bolts 48.. The pedestal and cap are formed with an annular channel 49, and rotatably fitting in said channel is a bearing ring which may be of bronze or other suitable material.` As brought out in Figure 1, this ring is provided `at its inner circumference with an*Y annular vgroove 51 which Y no.

snugly receives the peripheral marginsof the mating flanges 11 ofthe shells 10 of the joint member while, as brought out-in Figure 2, the bearing ring isfformed of mating semi-circular sections so that said ring may be readily assembled about said flanges.` Preferably,

`the bearing ring is appropriately fixedk to the flan es 1,1 to turn in unison therewith sothat the aring ring will lcooperatezwith the pillow block V.forjouriialing the double ended `joint member. Thus, the jointmemb'er will be rigidly Supported while, lwhen either of ,the vshafts 21` is rotated, theV torquewill be the shells .-140 and flanges 11 are circumferentiallyspaced transmitted through said member for drivingV the other shaft.

Having thus described the invention, what Iclaim'is: j. "j I j 1. A universaly tandenijjoint includinga double ended joint member composed of separate luniversal oint units, means connecting said units with each other and means rotat- I `ably mountingsaid `member and limiting said unitsV against separation to provide a reinforcement for said connecting means.

2. A universal tandem joint including a double ended joint member composed of separate universaljoint units, means connecting said units with each other, a pedestal, a cap mating with the pedestal, anda bearing ring journaled by said capand pedestal and ro-r tatably supporting said member, the ring-'being provided with means limiting .said units againstseparation. i

A universal tandem joint including a double ended joint member composed of companion universal joint units having vmating flanges together, and means embracing said flanges and rotatably supporting the joint for holding the flanges assembled.

4. A universal tandem joint includingl aV double ended joint .member composedqof com-H panion universal jointunits-having mating abutting flanges, means securing said flanges together, a pedestal, a cap mating withthe pedestal, and a'bearing ring-groovedtofit theyperipheral margins of said flanges and Y abutting flanges, means rigidlysecuring said 4member and constituting-an auxiliary means journaled by the pedestaland cap for rotatably sup-porting said joint member.

`5,. A universal tandem joint'including a double ended `joint member composed vof companion universal oint -units each having a shell, the shell of one of said units being' provided with a recess and the shell of thev otherof said units being provided with a flange fitting in said recess for centering the units with respect to each other, means rigid-V double-ended joint member composed of separate universal joint units, primary. means limiting said units against' separation,A` and secondary means,limitingsaid units against separation and ournaling the member.

iin

y8. `A universal tandem joint includiiiga Y double-ended joint member composed of separate .universal joint unitsmeans connecting said `units with each other and including a part on each of said units,` and means journaling said parts for rotatably supporting the member. Y

9. A-,universal joint of the class described Comprising companion joint units having matingflanges, means securing the langes together, and means for rotatably supporting the units comprising a bearing having a continuous annular seat, and a; ringrotatahly 10 mounted in the seat and formedin sections, the ring being disposed with its sections, surroundingrthe said flanges andr having yan in-` MAXWELL W. WvsoNG. [La] e g the margms. *'15 

